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JPH0316381B2 - - Google Patents
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JPH0316381B2 - - Google Patents

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Publication number
JPH0316381B2
JPH0316381B2 JP26453187A JP26453187A JPH0316381B2 JP H0316381 B2 JPH0316381 B2 JP H0316381B2 JP 26453187 A JP26453187 A JP 26453187A JP 26453187 A JP26453187 A JP 26453187A JP H0316381 B2 JPH0316381 B2 JP H0316381B2
Authority
JP
Japan
Prior art keywords
vinyl chloride
chloride resin
resin acid
cobalt
present
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP26453187A
Other languages
Japanese (ja)
Other versions
JPS63118351A (en
Inventor
Futoshi Takimoto
Susumu Tamura
Gunji Kubota
Yasuo Yokoyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP26453187A priority Critical patent/JPS63118351A/en
Publication of JPS63118351A publication Critical patent/JPS63118351A/en
Publication of JPH0316381B2 publication Critical patent/JPH0316381B2/ja
Granted legal-status Critical Current

Links

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  • Compositions Of Macromolecular Compounds (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は屋外暴露に対して安定な塩化ビニル樹
脂組成物に関するものである。 塩化ビニル樹脂の着色成形品を日光の直射の下
で使用すると、日光暴露部の表面が粉をふいた如
く白つぽく着色して成形品本来の色調が大巾に変
化する結果、成形品の外観が著るしく損なわれる
ことは周知の通りである。この白つぽく着色する
現象は屋外暴露では発生するが、合成樹脂成形品
の耐候性促進試験機として汎用されているウエザ
オメーターでは再現し得ない特異な現象で、チヨ
ーキングと呼ばれている。 処で雨樋、デツキ材等は屋外で特に長期間使用
されるため、かかる用途に塩化ビニル樹脂成形品
を利用する場合、チヨーキングの発生を抑制して
発生時期を遅延させる目的で、従来より種々の安
定剤を塩化ビニル樹脂に添加することが行なわれ
ている。なかでも有機錫系化合物、カドミウムの
金属石鹸、鉛の金属石鹸はチヨーキング抑制効果
が秀でていることから汎用されているが、これら
安定剤を含む塩化ビニル樹脂組成物であつてもそ
の成形品を屋外暴露すると2〜10ケ月後にはチヨ
ーキングが発生し始める。このように従来チヨー
キング抑制効果の秀でている安定剤であつても、
長期間屋外暴露する用途には到底充分なものとは
言えなかつた。そのためチヨーキング抑制効果が
長期間持続する安定剤が強く要望され、広く研究
されていたが、未だ満足すべき安定剤は見い出さ
れていない。 本発明者等は、かかる状況に鑑み鋭意研究の結
果、樹脂酸コバルトがチヨーキング抑制効果を有
すること、しかもその効果が従来汎用されていた
有機錫系化合物に比べ著るしく長期間持続するこ
とを見い出し、本発明に到つたのである。即ち本
発明は樹脂酸コバルトを含有することを特徴とす
る塩化ビニル樹脂組成物に関するものである。 本発明組成物は樹脂酸コバルトを塩化ビニル樹
脂に添加混合することにより形成できるが、樹脂
酸コバルトの使用割合については、塩化ビニル樹
脂100重量部(以後部で示す)に対し通常0.05〜
5部、好ましくは0.5〜2部が適当である。ここ
で言う塩化ビニル樹脂とは、塩化ビニルを構成単
量体とする単独重合体または共重合体を指す。こ
れら重合体には、着色剤成分或いは可塑剤、熱安
定剤、変性剤、滑剤等周知の性能向上成分が併存
していてもかまわない。樹脂酸コバルトを塩化ビ
ニル樹脂に添加混合するに当つて注意すること
は、均一分散を目的とすることであり、そのため
には微粉末状で使用すること、また充分に混練す
ることを要する。混合方法としては塩化ビニル樹
脂に直接添加して混合する方法、または塩化ビニ
ル樹脂に配合することが周知の配合成分例えば着
色剤成分或いは可塑剤、熱安定剤、変性剤、滑剤
等の周知の性能向上成分に予かじめ含有させてお
き、それを塩化ビニル樹脂に混合する方法がある
が、それらのうち均一に分散させ易いという点で
後者の方法が好ましい。特に着色剤成分を利用す
る場合、着色剤成分が均一且つ容易に塩化ビニル
樹脂中に分散できるるようその調製には充分な配
慮を払うので着色剤調製時に染顔料に樹脂酸コバ
ルトを併存させておくと、それらの均一分散性が
特に優れたものになるので適当である。かかる着
色剤成分の形態としては微粉末状ドライカラー、
練肉粉砕工程により製造される潤性タイプカラ
ー、樹脂その他の賦形材により固化したペレツト
状或いは板状のマスターバツチ、可塑剤その他の
液状或いは低温軟化点化合物をベヒクルとするペ
ーストカラー等のいずれにおいても良好な結果が
得られる。 かくして得られる本発明組成物は、屋外暴露に
対して安定であるため、屋外で使用する機器、用
具の用途に利用してもチヨーキングの発生が著る
しく長期間抑制されるので、雨樋、デツキ材等の
用途に最適である。 以下に本発明を実施例にて説明する。尚、実施
例中のチヨーキング抑制係数は以下の式から算出
したものである。 △EC−△EI/△EC×100 △EI=樹脂酸コバルト含有の本発明組成物のシー
トを屋外暴露した後の色差 △EC=樹脂酸コバルト不含有の他は上記と同一
組成の比較組成物のシートを上記と同一期間、
同一条件で屋外暴露した後の色差 従つて一定の屋外暴露期間においてこの係数の
値が100に近いほどチヨーキング抑制効果に優れ
ていることを意味する。 実施例 1 塩化ビニル樹脂(住友化学製、スミリツト
SX11F、重合度1100)100部にCa−Zn系安定剤
(日本インタースタブ製のインタースタブM62D)
3部を添加混合してコンパウンドを得た。かかる
コンパウンド103部に、弁柄0.7部、二酸化チタン
0.5部及び樹脂酸コバルト1部を添加混合し、155
℃の6インチ二本ロールにて5分間混練した後、
熱プレスで1mm厚のシートを作製し、屋外暴露し
た。 比較例 1 実施例1において樹脂酸コバルトの代りに同量
のジブチルチンジラウレートを使用する以外は全
く同様にしてシートを作製し、屋外暴露した。 以上の各例における暴露16ケ月後、20ケ月後及
び24ケ月後のチヨーキング抑制係数を第一表に示
す。
The present invention relates to a vinyl chloride resin composition that is stable against outdoor exposure. If a colored molded product made of vinyl chloride resin is used under direct sunlight, the surface of the exposed part will become white, as if it had been wiped with powder, and the original color tone of the molded product will change drastically, resulting in the molded product being damaged. It is well known that the appearance is significantly impaired. This phenomenon of whitish coloration occurs when exposed outdoors, but it is a unique phenomenon that cannot be reproduced with a weatherometer, which is commonly used as a weather resistance acceleration tester for synthetic resin molded products, and is called yoking. Rain gutters, decking materials, etc. are used outdoors for long periods of time, so when using vinyl chloride resin molded products for such purposes, various conventional methods have been used to suppress the occurrence of chocking and delay its occurrence. Stabilizers have been added to vinyl chloride resins. Among them, organotin compounds, cadmium metal soaps, and lead metal soaps are widely used because of their excellent anti-choke effect, but even if vinyl chloride resin compositions containing these stabilizers are used, their molded products cannot be processed. Chiyoking begins to occur after 2 to 10 months when exposed outdoors. In this way, even if the stabilizer has an excellent anti-yoking effect,
It could not be said to be sufficient for applications involving long-term outdoor exposure. Therefore, there has been a strong demand for a stabilizer that has a long-lasting inhibitory effect on yoking, and has been extensively researched, but no satisfactory stabilizer has yet been found. In view of this situation, the present inventors conducted intensive research and found that cobalt resin acid has a choking inhibiting effect, and that this effect lasts for a significantly longer period of time than that of conventionally widely used organotin-based compounds. This heading led us to the present invention. That is, the present invention relates to a vinyl chloride resin composition characterized by containing cobalt resin acid. The composition of the present invention can be formed by adding and mixing cobalt resin acid to vinyl chloride resin, but the proportion of cobalt resin acid used is usually 0.05 to 100 parts by weight (shown below) of vinyl chloride resin.
5 parts, preferably 0.5 to 2 parts is suitable. The vinyl chloride resin referred to herein refers to a homopolymer or copolymer containing vinyl chloride as a constituent monomer. These polymers may contain colorant components, plasticizers, heat stabilizers, modifiers, lubricants, and other known performance-enhancing components. When adding and mixing cobalt resin acid to vinyl chloride resin, care must be taken to achieve uniform dispersion, and for this purpose it is necessary to use it in the form of a fine powder and to thoroughly knead it. The mixing method is to add directly to the vinyl chloride resin and mix, or to mix it with the vinyl chloride resin, such as a coloring agent component, a plasticizer, a heat stabilizer, a modifier, a lubricant, etc. with well-known performance. There is a method in which the improving component is included in advance and mixed into the vinyl chloride resin, but the latter method is preferred because it is easier to uniformly disperse. In particular, when using a colorant component, sufficient consideration must be given to the preparation so that the colorant component can be uniformly and easily dispersed in the vinyl chloride resin, so cobalt resin acid should be present in the dye and pigment when preparing the colorant. This is suitable because the uniform dispersibility of these particles becomes particularly excellent. The form of such coloring agent components is fine powder dry color,
Moisture-type colors manufactured by the kneading process, pellet-like or plate-like master batches solidified with resins and other excipients, paste colors using plasticizers and other liquid or low-temperature softening point compounds as vehicles, etc. Good results can also be obtained. The thus obtained composition of the present invention is stable against outdoor exposure, and even when used for equipment and tools used outdoors, the occurrence of choking is significantly suppressed for a long period of time, so it is suitable for use in rain gutters, rain gutters, etc. Ideal for use as decking material, etc. The present invention will be explained below with reference to Examples. Note that the choke suppression coefficient in the examples was calculated from the following formula. △E C −△E I / △E C ×100 △E I = Color difference after outdoor exposure of a sheet of the composition of the present invention containing cobalt resin acid △E C = Same as above except that it does not contain cobalt resin acid Composition comparison Composition sheet for the same period as above,
Color difference after outdoor exposure under the same conditions Therefore, the closer the value of this coefficient is to 100 for a certain outdoor exposure period, the better the damping suppressing effect is. Example 1 Vinyl chloride resin (Sumitomo Chemical, Sumiritz)
SX11F, polymerization degree 1100) 100 parts Ca-Zn stabilizer (Interstub M62D manufactured by Nippon Interstub)
Three parts were added and mixed to obtain a compound. 103 parts of the compound, 0.7 parts of Bengara, and titanium dioxide.
Add and mix 0.5 part and 1 part of cobalt resin acid, 155
After kneading for 5 minutes with two 6-inch rolls at ℃,
A 1 mm thick sheet was produced using a heat press and exposed outdoors. Comparative Example 1 A sheet was prepared in exactly the same manner as in Example 1 except that the same amount of dibutyltin dilaurate was used instead of cobalt resin acid, and exposed outdoors. Table 1 shows the yoking inhibition coefficients after 16 months, 20 months, and 24 months of exposure in each of the above cases.

【表】 例1 ート
[Table] Example 1

Claims (1)

【特許請求の範囲】[Claims] 1 樹脂酸コバルトを含有することを特徴とする
塩化ビニル樹脂組成物。
1. A vinyl chloride resin composition characterized by containing cobalt resin acid.
JP26453187A 1987-10-20 1987-10-20 Vinyl chloride resin composition Granted JPS63118351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26453187A JPS63118351A (en) 1987-10-20 1987-10-20 Vinyl chloride resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26453187A JPS63118351A (en) 1987-10-20 1987-10-20 Vinyl chloride resin composition

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP9756179A Division JPS5622342A (en) 1979-07-31 1979-07-31 Vinyl chloride resin composition

Publications (2)

Publication Number Publication Date
JPS63118351A JPS63118351A (en) 1988-05-23
JPH0316381B2 true JPH0316381B2 (en) 1991-03-05

Family

ID=17404553

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26453187A Granted JPS63118351A (en) 1987-10-20 1987-10-20 Vinyl chloride resin composition

Country Status (1)

Country Link
JP (1) JPS63118351A (en)

Also Published As

Publication number Publication date
JPS63118351A (en) 1988-05-23

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